Sos- normal breast physiology and malignant disorders Flashcards
functional unit of breast
terminal duct lobular units
____ does NOT determine function
size
around the time of _____, nipples and duct system develop along milk line
birth
Once ovulation and menstruation begins the breast forms mature ______ glands
secretory
during ____, breasts are capable of milk secretion and become hyperplastic
pregnancy
Estrogen and progesterone have decreased allowing for breast atrophy; increase in fat
menopause
A. fibrous (me)
B. hyperplastic glands (pregnancy)
older female
apoptosis of connective tissue
increase in adipose tissue
Polythelia
possible difficulty w/ breast feeding but have contraptions to help
inverted nipple
about ___ lobes per breast
20
what are within the lobes
lobules and many terminal duct lobular units
can be stretched and retract skin due to mass
cooper’s (suspensory) ligaments
70 yr old nun hits your kid and ends up with winged scapula, what did she injure
Long Thoracic n.
temporary collecting place for milk
lactiferous sinus
single layer of cuboidal cells that express milk in the duct
acini
bottom of picture
terminal duct
on outside
acini
acini
breast
in males; bilateral
hypertrophy/hyperplasia of ducts and adipose tissue
due to imbalance of estrogen and testosterone
(Leydig cell tumor can cause this in adults)
Gynecomastia
only part of breasts that men have
terminal duct
can be a moveable mass
tender w/ possible clear nipple discharge
benign
breast solitary cyst
often bilateral and changes around menstrual cycle; benign
fluid filled cysts, fibroplasia, adenosis
fibrocystic change
if atypical hyperplasia is found in fibrocystic change, increased chance of what
cancer
trauma related
seatbelt injury/ball to chest
fat necrosis
fat necrosis
Histology:
Coagulative and fat necrosis
Acute and chronic inflammation
Fibrosis
fat necrosis
stain for macrophages
CD68+
often during breast feeding
redness and swelling of nipple
inflammation
mastitis
alveoli and stroma undergo hyperplasia/hypertrophy
lactating mammary glands
L and R
mom is lactating
L: normal
R: lactating